Nearly 100% of women in Iceland whose unborn baby tests positive for Down syndrome are aborting them. From CBS News:

Since prenatal screening tests were introduced in Iceland in the early 2000s, the vast majority of women — close to 100 percent — who received a positive test for Down syndrome terminated their pregnancy.

While the tests are optional, the government states that all expectant mothers must be informed about availability of screening tests, which reveal the likelihood of a child being born with Down syndrome. Around 80 to 85 percent of pregnant women choose to take the prenatal screening test, according to Landspitali University Hospital in Reykjavik.